Tarciana Silva

Learn More
Isosurface extraction is one of the most eeective and powerful techniques for the investigation of volume datasets in scientiic visualization. Previous isosurface techniques are all main-memory algorithms, often not applicable to large scientiic visualization applications. In this paper we survey our recent w ork that gives the rst external memory(More)
−− This paper presents the architecture and the VHDL design of the integer Two-Dimensional Discrete Cosine Transform (2-D DCT) used in the H.264/AVC codecs. The forward and inverse 2-D DCT architectures were designed and their synthesis results mapped to Altera FPGAs are presented. The 2-D DCT calculation is performed by exploring the separability property,(More)
PVR Parallel Volume Rendering is an object-oriented, clienttserver system, developed for high performance volume rendering of very large datasets. Among its important features are performance, scalability, transparency and extensibility. PVR is well suited for use in a supercomputing environment, where datasets are too large to be easily archived and(More)
We describe the PVR (Parallel Volume Rendering) system, which consists of a mix of modular C/Tcl/Tk code. With PVR it is possible to balance rendering eeciency, throughput, and latency over a large number of parallel machines conngurations. It supports diierent rendering schemes and it can be easily augmented with others. PVR has unique capabilities: it can(More)
Information management is a key feature for the successful deployment of service architectures that involve highly distributed, dynamic, collaborative, and heterogeneous networks. Current solutions fail to meet important requirements of those networks since they have limited support for dynamicity of networks, nodes and information, or flexible information(More)
  • 1